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Beiyanerpeton jianpingensis
Taxonomy
Beiyanerpeton jianpingensis was named by Gao and Shubin (2012). Its type specimen is PKUP V0601, a skeleton (a nearly complete skeleton exposed in ventral view), and it is a 3D body fossil. Its type locality is Guancaishan, near Jianping, which is in an Oxfordian lacustrine - large ash in the Tiaojishan Formation of China. It is the type species of Beiyanerpeton.
Synonymy list
| Year | Name and author |
|---|---|
| 2012 | Beiyanerpeton jianpingensis Gao and Shubin p. 5767 figs. 2-3 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Beiyanerpeton jianpingensis Gao and Shubin 2012
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| K. -Q. Gao and N. H. Shubin 2012 | A Late Jurassic neotenic salamandroid diagnosed by the following unique combination of character states: Skull relatively wider than long, both anterodorsal and anteromedial fenestrae developed; sensory canal present on external surface of premaxilla and maxilla; prefrontal present; lacrimal retained; palatine present as a discrete and dentate element; marginal teeth nonpedicellate, simple peg-like and significantly shorter than vomerine teeth; posterolateral wings of parasphenoid grooved for internal carotid artery; operculum separate from stapes; hypobranchial I and II well ossified; basibranchial I and II co-ossified; angular lost by fusion with prearticular; presacral vertebrae 15 in number; vertebral centrum short, strongly constricted, with prominent subcentral keel; phalangeal 2-2-3-2/3 in manus, and 2-2-3-4-3 in pes. |
Measurements
No measurements are available
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| Source: subo = suborder, c = class, subp = subphylum, uc = unranked clade | |||||
| References: Carroll 1988, Hendy et al. 2009, Uhen 2004 | |||||
Age range: Early/Lower Oxfordian or 161.20000 to 155.70000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Oxfordian | China (Liaoning) | Beiyanerpeton jianpingensis (type locality: 130986) |